RU1834757C - Power scraper - Google Patents

Abstract

Usage: scraper with the ability to change the magnitude of the stroke of the slide of a mechanical scraper. The inventive mechanical scraper comprises a drive shaft 1 and a crank mechanism, the connecting rod 5 of which is connected at one end to the slider 7 and the other to the crank 2. In the joint of the connecting rod 5 with the crank 2 there is a through groove 9 with a length equal to the distance the gap between the axis of the stud 6 and the axis of rotation of the crank 2. At the point of articulation of the connecting rod 5 with the slider 7, a through groove 1.0 is made with a length greater than the distance between the axis of the stud 6 and the axis of rotation of the crank. In order to adjust the stroke amount of the slide, the adjusting nut 11 is moved along either side of the slide 7. 2 ill.

Description

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The invention relates to the processing of metallic and nonmetallic materials, including superhard materials.,; With chip removal.

The purpose of the invention is to significantly increase the capabilities and applications, increase productivity, quality and improve working conditions.

In FIG. 1 shows a cartridge for manual machines, longitudinal section; figure 2 is a longitudinal section. of the mechanism of the cartridge in the projection, rotated 90VC.

The mechanical scraper comprises a drive shaft 1, which is kinematically connected to the crank 2. with two cheeks. One of the cheeks is the worm wheel 3, and the other is the counterweight 4.. The crank is connected to the connecting rod 5 pivotally by a pin 6, In turn, the connecting rod 5 is connected to the slider 7 by the pivot axis 8. In the places of the articulation of the crank, the 2nd connecting rod 5 and the worm wheel 3, counterbalance 4, in the last two positions 3 and 4 oblong holes 9 are made (the ends of the holes are radial), the length of the oblong holes 9 is equal to the interaxal distance of the crank 2, a. The length of the oblong holes 10 in the place of articulation of the connecting rod 5 with the slider 7 is made larger than the axle race the position of the crank 2. On the slider 7, on the fastening side of the working tool (not shown), a thread is made and an adjusting nut 11 is installed. A shock absorber 13 is installed in the tip 12 of the cartridge case, and a spring 14 is installed on the slider.

When the drive shaft rotates, a 1 crank mechanism 2 converts the rotation motion into a linear reciprocating, which transfers-c-st to slider 7 and, consequently, to a working tool (not shown) .- Such a device

allows you to adjust the stroke length of the slider 7-. To do this, it is necessary to turn the nut 11 clockwise or counterclockwise to set the stroke length of the slider 7 - the stroke of the working tool, which is necessary to perform a specific job. For

to fix the adjusting nut 11 in the desired position, you can use known means - a lock nut or a locking screw.

Technical appraisal and economic benefits

proposed cartridge:

1. Achievement of the possibility of adjusting the stroke length of the slider (working body) in the range, for example, from 3 mm to the maximum when performing various tasks requiring, in each individual case, the corresponding stroke length of the slide according to the scientific, methodological and technological requirements.

2. Achieving the possibility of adjusting the stroke length of the slide without changing the mass and dimensions of the cartridge.

3. Reducing the complexity of processing the inner surface of the cartridge housing,

eliminated collar from the side of the end of the slide, eliminated circular grooves and spring rings at the installation site of the drive shaft, which greatly simplified assembly and disassembly of the cartridge; the drive shaft is also mounted on ball bearings with shields, as is the crank.

Claims (1)

SUMMARY OF THE INVENTION A mechanical scraper comprising a drive shaft, a connecting rod pivotally connected at one end with a slider, and with a crank at the other, and with the aim that, in order to expand technological capabilities, it is equipped with an installed with the ability to move along the slide with an adjusting nut, while in places Through grooves are made for the articulation of the connecting rod with the slider and the crank, and the groove length at the joint of the connecting rod to the crank is equal to the axis of the stud relative to the axis of rotation of the crank, and the length of the groove at the joint of the connecting rod to the crank is greater than the displacement of the stud relative to the axis of rotation of the crank in this case, the slider is spring-loaded in the axial direction.